Method of screw-capping bottles.



AJWILZIN. METHOD OF SCREW GAPPING BOTTLES.

' APPLIUATION FILED FEB. 6,1907.

Patented Oct 19,1909.

2 SHEETS-SHEET 2.

IIIIlIlIII/I were??? Mfia 8726 d.

Anemia. WILZI-N or amount, nuance.

minim) or sum-enema" screws;-

specification 01 Letters patent. Pat nted Oct. 19', 1909.

mumiounlwrearwy e, 1902.. Serial no. 855,988.

To-a'll whom-it'mayiconoem:

Be it known thatI, ARTHUR Wmzm, 0134' Rue Huntziger, Clichy'; Seine, Republic of France, engineer',chave inventeda' Method of Screw-Capping Bottles and other Receptacles, of which the followingisafull, clear,

and exactdescription;-

The present. invention relates to a method of'closing glass'and porcelain bottles, jars or the like by-mcans o in such a way. as to enfbodyre following points which are essential for the practical and industrial application of screw cap closures for: wine, beer, mineraland sodawater bottles; etc., also to certain classes of preserve jars, and the like. v

The: characteristic advantages of my invention which cannot beobtained bythe use ofithe screwcapping systems known up to date" afre'z' 1*. My a rm fief in'stantly s'li ed' over, andrapidl ggatti ghed to the screw g neck'of the bottle, instead of having to-be slowly screwed on the same. The slowness of this screwing operation has renderedv the usual screw cap closure. im ossible for charged waters and industrial y impracticable; for most other bottling-"purposes.

2: A. strong' itritial pressure (such: as is usually exerted-1035a straight-line motion: in capping'machines) may be brought to bear on't-he cap and the jo'intibeneath it; thus-insuring a much greater degree oftightness thanmaybe obtained by screwing an ordi, nary screw cap home against the j oint':

3. The operation of shaping the screw threads of the cap is accomplishedl against the threadedor corrugated neck'of the'bottle itself, which serves as a matrix for the purpose, and this shaping process takes place while the cap and'joint are being held under pressure from above; In this way, a powerfulhold of the ca on the neck-is assured v f the? cap threads a ainst thebottle threads, notwithstanding t e. ir regularities which are unavoidable in the molding process of gl'ass. or porcelain necks.

4.- The usual operation of shaping the screw threads on the cap by' means of. a special: machine after -the stamping and" before the application on. the bottleneck is done. away with, .thu's saving that. part of the machinery: outfit; simplifying, the. manufactune: and'deoreasingthe cost.

sheet metal screw caps;

' 5'. My cap is so locked on the bottle neck that itcannot jar loose by shock or trepidationin handling and transport.

,6. The locking feature of the cap must be destroyed in order to open-the bottle, thus insuring inviolability of the closure, while permitting a rapid and eflective use of the "cap for temporary reclosure, a feature of great lmportance and which is not found in any other inviolable sheet metal cap.

My method of capping which renders the above points feasible is essentially charac terized by the fact that the screw threading of the cap is molded either wholly or in part upon the screw thread of the neck of the bottle or other receptacle in such manner that the cap adapts itself exactly to the neck of: the bottle. The method of capping co'nsists' in slipping a plain cap or one upon which the screw threads have already been partly produced, over the neck of the bottle or other receptacle and exerting pressure upon its circumference insuch manner as to cause the metal of the cap to take the impression of the thread of the neck of the bottle which thus constitutes a matrix. Before' this' molding pressure is exerted the cap and receptacle are interlocked against relative" rotation, means to. effect such interlocking being" provided as hereinafter describe I The manner'of carrying out the invention will be described with reference to the accompanying drawing, wherein:- A

Figures 1 and 2' showapreferredform of cap? having a plain circumference or .fiange, while Figs. 3- and; show a modified form of" cap which maybe used with my" invention, said caphaving upon its'fiange partly formed screw threads or corrugations. Figs. to 9 show various forms of caps adapted to beused according to ,my inven tion and embodying an inwardly projecting locking-member adapted to engage with. a

notch in the neck of the bottle; Fig. 5" shows a face View of the cap upon the neck of the bottle; Fig. 6 is a vertical section on line A-A of Fig. 5; Fig. 7 is a horizontal section on line'eB-B ofFig. 5 (drawn to an' enlarged scale) showing the cap locked into the notch of the bottle; Fig. 8 shows. the neck ofjthe bottle in elevation andFig; 9 shows the cap after'tlie removal of the lock mg-member which holds the cap in place.

Figs. 10 and 11 show in elevation and in vertical section a construction in which the' tions in which this improved screw capping method is applied to fruitars. F1gs..

16 and 17 show in elevation and' in plan a cap rovided with ribs. Fig. 18 illustrates a modlfication of the cap-fastening apparatus.

As will be seen by reference to Fig. 1, in carrying out the method, I apply to the neck of'the bottle or other receptacle a, having a screw thread I), a plain stamped cap 0," a packing disk d (for instance of cork) is interposed between the neck and the head of the cap. The neck of the bottle thus covered by its cap is then presented to devices adapted to apply pressure against the circumference of the neck, such as jaws or rolls e. These jaws or rolls may be made of steel or provided with an elastic substance f (india-rubber, leather, etc.) and are sus-'.

ceptible of being moved in the direction of the arrows, so as to apply to the cap the requisite pressure (as shown in Fig. 2) The jaws or rolls may receive, at the moment when they exert the pressure upon the neck, Y

a rotary movement around the latter,'or the bottle or other receptacle may. receive a rota ry movement at the moment when the jaws or wheels come into contact with it in such manner that the edge of the cap is shaped all along its circumference agalnst the neck of the bottle. In the case of using solid grooved jaws or rolls, not provided with an elastic pressure covering, the elasticity required to compensate for irregularities in the shape and size of the neck may be'provided by interposing spring cushions at some convenient point between the members which actuate the pressure motions as indicated in Fig. 18.

When the cap is ,made of thin and pliant metals (such as aluminium, brass, tinplate) the pressure may be imparted olrectly to a plain cap as has been above described. On the other hand When the metal in the cap is comparatively thick or hard, it may become necessary to stamp the cap with a preparatory thread on its edge, which edge, in this case should be slightly tapering as shown in Figs. 8, 4, in order that the cap may be freely slipped over the neck. The pressure subsequently applied to the flange of the cap will then complete the shaping of the screw thread and cause the helical grooves previously formed upon the edge to exactly con-' form themselves to the screw threads on the bottle neck. Y

The cap should preferably be formed with atongue g (Fi s. 3 and 4) which will drop into notch h, w en the cap is applied to the neck, or between two lugs formed on the Fig. 12 shows abody of the receptacle. The placing of this tongue 9 in the notch h insures the requisite position of the cap, so that the partially formed grooves 21 will correspond with the threads on the neck of the bottle ready to be pushed into same when pressure is brou ht to bear against the flange of the cap. T at is to say. after the cap has been slipped axially onthe bottle neck, the tongue 9 is placed in the notch It, so as to lock the cap against rotation, and then (while an axial downward pressure is being exerted on the cap so as to compress the packing disk d) the cap-fasteningbr molding apparatus is operated to force the cap into close contact with the screw-thread of the bottle.

The locking tongue '9 may be entirely lodged in the edge of the cap by means of two incisions j or by two lines of weakness,

but it should preferably be extended (as per Figs. 5 and 6) below the edge of the cap in order to facilitate its being taken hold of by the fingers. lhe screw thread It on the neck a of the bottle is interrupted as at l (Figs. 7, 8, 9), so as to permit of an inwardly projecting dent on g to engage with it and thereby prevent the cap from turning 'on the neck before 9 is removed. A line of weakness we may be provided, connecting the two lines j for the purpose of easily tearing off 9 when it is raised and disengaged from the notch in the neck of the bottle in order to unscrew the cap. The screw thread is of the neck of the bottle need not, however, be interrupted. The receptacle may instead be formed with a projection h (Figs. 1045) upon which a corresponding concave portion on the tongue g may be applied, so as to lock the cap in its position. lnstead of this projection h, the receptacle may also be provided with a cavity in which a convex portion of the tongue 9 isreceived.

When the cap 0 1s applied to the neck of the bottle or jar and the locking tongue 9 is engaged as shown in Figs. 3, 4, 5, 6, 10, 11, 13 and 14, the cap cannot turn or unscrew by reason of trepidations or shocks to which it may be subject during transport or han-' dling, so that a safe closure of the bottle is insured.

-To open the bottle or other receptacle, the

consumer raises the tongue g in order to disengage it from the notch in the threaded portion as shown in Figs. 5 and 6, or from the notch h as shown in Figs. 3, 4, or the projection h shown in Figs. 10, 11, 13 and 14, and the tongue 9 bein thus raised will be brokenofi' along the line of weakness m. The cape may then be unscrewed. The body 'of the cap 0 which is to be molded upon the screw-thread of the neck of the bottle or other receptacle can be provided with ribs 0' arranged, as shown in Figs. 16 and 17, according to the generatrices of this cap (that is, vertically) and adapted to afford a better lltI hold when unscrewing. Theseribs or rid es also present the advantage that they ren er the cap expansible and contractile within certain limits, so that it may fit the bottle or other receptacle properly, notwithstanding variations or maccuracies in the diameter prevent fraud. a

My invention permits of closing bottles with screw caps very rapidly, as'it does away with the necessity of screwing the. cap on the bottle when being applied, and the .closure may be efiected by very simple mechanical. means. I

This method of cap ing may, of course, be applied to all kin s of receptacles 'for which it is adapted.

Claims: 1. The. method of applying flanged capsto receptacles provided with corrugations which consists in sli ping the cap axially of the receptacle, posltlvely interlocking the parts against rotation and then pressing the flange of the cap radially against the recepthe flange of the cap so as to mold the same tacle to mold said flange upon said corrugations. r

2. The method of applying. flanged caps to receptacles provided with corrugations which consists in slipping the cap axially of the receptacle, positlvely interlocking the parts against rotation and then pressing the flange of the cap radially against the receptacle to mold sald flange upon said corrugations while also pressing the cap axially against said receptacle.

3. The method of applying flanged caps to receptacles provided with corrugations which consists in sli ping the ca axially of the receptacle, positively inter ocking the parts against rotation and then pressing the flange of the cap inwardly against the receptacle to mold said fl'angeupon said corrugations.

4. The method of applying flanged caps to receptacles provided with corrugations which consists in slipping the ca axially of the receptacle, nosltively interlbcking the parts a ainst rotation and then applying a circumt zrentially shifting radial pressure to the flange of the cap so as to mold the same upon said corru atlon s.

5. The metho of applying flanged caps -to receptacles provided with corrugations which consists in slip )ing the ca axially of the receptacle, positively inter ocking the 4 parts a ainst rotation and then applying a circum crentially shlfting radial pressure to upon said corrugations while also pressing the cap axially against said receptacle.

6. The method of applying flanged caps to receptacles provided with corrugations which consists in slipping the ca axially of a the receptacle, positively inter ocking the parts a ainst rotation and then applying a circum erentiall shifting inward pressure to the flange oi the' cap so as to mold the same upon said corrugations.

'7. The method of applying flanged caps to receptacles provided with corrugations which .consists in bringing said flange and said corrugations into juxtaposition, positively interlocking said cap and said receptacle against rotation and then applying radial pressure to the flange to mold the same upon Silld corrugation.

8. The method of applying flanged caps to receptacles provided with corrugations which consists inbringing said flange and said corrugations into juxtaposition, positively interlocking said cap and said receptacle against rotation and then molding said flange upon said corrugations. v

9'. The method of applying flanged, caps to receptacles provided with corrugations which consists H1 bringing said flange and said corrugatlons into juxtaposition, positively interlocking said cap and said receptacle against rotation and then molding said flange, upon said corrugations while also prelssing the cap axially against said receptac e.

l0 The method of applying flanged caps to receptacles provided with corrugations which consists in bringing said flange and said corrugations into juxtaposition, positively interlocking said cap and said receptacle against IOtiltlOIl, and then molding said flange upon said corrugations said molding being simultaneous for each and all of the corrugations.

11. The method of applying flanged caps to receptacles provided with corrugations which consists-in bringing said flange and said corrugations into juxtaposition, positively-interlocking saidcap and said receptacle against rotation and then simnltaneously forming upon said flange a number of corrugations to fit andengage the corrugations of the receptacle while also exerting axial pressure between said cap and said receptacle. t

The foregoingspecitication of my method of screw c.cpping bottles and other receptacles signe by me this 19th day of January, 1907. i

' ARTHUR WILZIN.

Witnesses:

Hanson C. Coxn, "MAURICE H. Planar. 

